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once irradiated stainless steel is heated. Features in heat flow for the irradiated steel (red), compared to an unirradiated piece (blue), support Short’s premise that radiation creates a “stored energy fingerprint” in materials. Two unexpected energy absorption spikes above 400 degrees Celsius helped Short and his collaborators in Kazakhstan identify another, previously undocumented effect that could assist in identifying damage: some materials become magnetic when irradiated. http://lnsp.mit.edu/news/2017/10/15/r-scott-kemp-is-a-fellow-of-the-american-physical-society monthly 0.5 2017-10-16 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1508126956860-YR0RELXLN4Z2QIMLBT6B/059d.jpg News - Scott Kemp is a Fellow of the American Physical Society http://lnsp.mit.edu/news/2016/11/22/brian-henderson-experimenting-with-physics-and-policy monthly 0.5 2016-11-22 http://lnsp.mit.edu/news/2016/10/1/jayson-vavrek-turning-particle-detectors-into-weapons-detectors monthly 0.5 2016-10-02 http://lnsp.mit.edu/news/2016/10/1/lnsp-in-the-new-yorker-virtues-of-nuclear-ignorance monthly 0.5 2016-10-02 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1475430554110-6YFXU5TG2X2SZP13K4OV/image-asset.png News - LNSP in The New Yorker: The Virtues of Nuclear Ignorance http://lnsp.mit.edu/news/2016/2/23/lnsps-kemp-named-sloan-fellow-in-physics monthly 0.5 2016-09-12 http://lnsp.mit.edu/news/2016/10/2/aditi-verma-a-multidisciplinary-take-on-nuclear-policy monthly 0.5 2016-10-02 http://lnsp.mit.edu/news/2015/9/30/areg-danagoulian-wins-ieee-early-career-award monthly 0.5 2015-09-30 http://lnsp.mit.edu/news/2016/10/1/ruaridh-macdonald-upholding-disarmament-agreements-with-engineering monthly 0.5 2016-10-02 http://lnsp.mit.edu/news/letter-to-obama monthly 0.5 2017-10-24 http://lnsp.mit.edu/news/2015/6/4/lnsps-kemp-receives-support-from-carnegie-and-nec monthly 0.5 2015-06-11 http://lnsp.mit.edu/news/2015/4/20/media-coverage-of-the-monochromatic-program monthly 0.5 2015-05-14 http://lnsp.mit.edu/news/2015/4/2/kemp-statement-on-the-iran-nuclear-joint-comprehensive-plan-of-action-jcpoa monthly 0.5 2015-07-09 http://lnsp.mit.edu/news/2014/11/21/lnsps-kemp-speaks-on-the-iran-nuclear-deadline monthly 0.5 2015-04-04 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1416593677117-244GJJCWZCYMTPH4OL6M/image-asset.jpeg News - LNSP's Kemp Speaks on the Iran Nuclear Deadline Prof. R. 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This type of machine is able to produce centrifuge rotors for North Korea's uranium-enrichment program. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1416662326346-QND1ONIIHLF2N32NQD54/image-asset.png News - New Study Finds North Korea Has Indigenous Capabilities to Produce Nuclear Weapons An illustration from an open North Korean technical journal showing the computation for balancing a uranium-enriching centrifuge rotor. The article was published 1989, 21 years before the North Korean enrichment program was revealed to the public. http://lnsp.mit.edu/r-scott-kemp daily 0.75 2025-02-18 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/297ba151-d854-49ba-a0a5-ecb417453297/R_Scott_Kemp.jpg R. Scott Kemp Professor R. Scott Kemp http://lnsp.mit.edu/monochromatic-cargo-interrogation daily 0.75 2018-04-15 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1416179931841-VYR6IJS316KIQQJPCEVS/IMG_2026.jpg Cargo Security https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523205595086-DVRYZ13CBAZPXVY4KE20/20170106_105232.jpg Cargo Security - Multiple Monoenergetic Gamma Radiography (MMGR)   https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1417640207777-TCCG4ZM6JWPFLFPD8KPN/image-asset.png Cargo Security The 3MeV RFQ accelerator at MIT-Bates. CLICK TO ENLARGE. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1417640890029-URB529XDORI3YYJAMXPO/IMG_1754.jpg Cargo Security The NaI(Tl) detector array. CLICK TO ENLARGE. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1417642374095-1QEGZ40HN1ENCLVL7AVI/image-asset.png Cargo Security Mass attenuation coefficient's dependence on energy and Z. CLICK TO ENLARGE. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523205476881-HT8WQCH29U8F0W20B2K9/constAchangeZ.png Cargo Security Energy deposition spectra measurements from the transmitted beam for various materials of equal areal density. CLICK TO ENLARGE. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523206485400-DVSS7E1LQ0NQBB8EWH5Z/images2.png Cargo Security Cargo reconstructions for elements from low Z to high Z (such as lead and U). The material reconstruction infers the the density (right) and the effective Z (center) to within percents. CLICK TO EXPAND https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523224150392-MZ4XCZSUFG0BK7CY7JVK/collaboration.jpg Cargo Security The ARI collaboration -- faculty, research staff, students and program managers -- next to ION-12(sc). http://lnsp.mit.edu/zach-hartwig daily 0.75 2017-06-19 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1416157496820-XVOIU9FVY2XQLMO5RY1Q/image-asset.jpeg Zach Hartwig http://lnsp.mit.edu/lnsp daily 1.0 2025-02-08 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/eff8286e-3be1-490e-99fb-71dde9defb9c/incoming-missiles.jpg LNSP Nanocalorimeter for measuring a radiation fingerprint http://lnsp.mit.edu/jayson-vavrek daily 0.75 2016-08-18 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1471561556917-4M9B24ZYB1N66YIMTPIQ/image-asset.jpeg Jayson Vavrek http://lnsp.mit.edu/buck-o-day daily 0.75 2015-05-07 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1414263148802-NUS1HFXSVF1DZ5I00DTU/image-asset.png Buck O'Day http://lnsp.mit.edu/mareena-robinson-snowden daily 0.75 2014-10-28 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1414534948355-9MROIPJMN6IN886D15JQ/image-asset.jpeg Mareena Robinson-Snowden http://lnsp.mit.edu/research daily 0.75 2014-11-22 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1416145577938-LFF7KB1KNII57YFFMK1Z/image-asset.jpeg Research https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1416179075018-TIGZUD7L1HP57NI85LPN/image-asset.jpeg Research https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1416081716744-BORL1PZQMI6U3JV4O85N/NRF+setup.jpg Research https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1416145908546-KIC7BXZZZ3J2AP2V3Z2D/image-asset.jpeg Research https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1416146264828-J33T89US75Y67M0GMKH0/image-asset.jpeg Research https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1416181732749-PC7ZABD7108PCL4BGJZB/image-asset.jpeg Research https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1416181587318-DW41J5ZWBYOPP301D3ZK/image-asset.jpeg Research http://lnsp.mit.edu/seminars daily 0.75 2014-11-22 http://lnsp.mit.edu/nrf-warhead-verification daily 0.75 2018-04-22 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523226240114-5FOQW1E8591BDUQ6260W/IMG_20170913_105930.jpg Treaty Verification with tNRF The transmission NRF experimental verification system used by LNSP. The combination of low cross sections of NRF and the slowness of the germanium detectors require us to use (multiple) tons of lead shielding to make a measurement happen. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1412620332770-XD3P67HEHII0OSM94BJA/zk-nrf.jpg Treaty Verification with tNRF A zero-knowledge detector arrangement for measuring warhead isotopes. The electron beam (blue) is converted to broad-spectrum x-rays (purple) and collimated by lead blocks (gray). The collimated x-rays pass through the nuclear warhead (center) and encode a set of narrow NRF absorption lines in the transmitted beam that contain information about the warhead's composition. This beam then interacts with the zero-knowledge foil (green). The foil fluoresces with a convolution of the foil's secret composition and the warhead's composition to create a unique 'glow' that is in essence an encrypted signature of the warhead's composition that cannot be decoded without knowledge of the foil's composition. This glow is measured using high-purity germanium (HPGE) detectors embedded in lead shielding. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523235197442-PUYKZO1FUL9XTH01KZF4/Untitled.png Treaty Verification with tNRF Jayson in his natural habitat. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523236208165-6I9EKXA3UIY789OB5MFG/schemext-figure0.png Treaty Verification with tNRF The schematic of the run, showing the positions of the photon beam, the proxy warhead, the encryption foil, and the detectors. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523235674164-LVZYKSFVQUAAV7QT2FHZ/c1-eps-converted-to.png Treaty Verification with tNRF ALL CLEAR: template to "honest candidate" comparisons, showing a match. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523236039058-2YXGZ6CF4JGC5FNTQDK6/c3-eps-converted-to.png Treaty Verification with tNRF ALARM: the signals from the template (black) and the candidate (red) do not mach! http://lnsp.mit.edu/strategic-fuel-reserves daily 0.75 2014-10-25 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1414246059102-UM6V8U1FOHS6LG9WTHF0/image-asset.png Strategic Fuel Reserves A strategic petroleum reserve in Japan. This man-made island contains less thermal energy than can be stored by 30 square feet of nuclear fuel. http://lnsp.mit.edu/diplomacy daily 0.75 2018-01-24 http://lnsp.mit.edu/the-new-enrichment-technologies daily 0.75 2014-12-09 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1410577662647-Z8SMY4YS54BFTSWE3OTD/AVLIS.jpg Laser Enrichment http://lnsp.mit.edu/people daily 0.75 2025-02-08 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1539742480043-CSF4U1MP4GL5EPD9ZAT9/LNSP-group-header.jpg People https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/440e9543-e5af-43be-9565-75d8b82d5396/R_Scott_Kemp.jpg People https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1527883138157-XX0IPNUHTSON7ECTM0XK/short.jpg People https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1414243858646-M02NALIOJCC0RJPLBBUF/danagoulian.jpg People https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1414244146016-QNE9D8KA112C11CN6MMS/image-asset.jpeg People https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1605240206783-7MR7OVLOS02WSC4F8NCO/LGronlundsq.jpg People https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1601044968198-MN7IDURGYQ1TRBQPF4CX/D+Wright.jpg People https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/96c082e9-2ed8-4262-b773-249f58f6518e/Hecla.png People - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/c75e20fc-7ac7-45b2-8a17-d0b8d9eedbd4/Lucas.png People - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/4747bbc3-a5fe-4edc-aa7a-20a158003958/Montoya_Natalie_small.png People - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1612920621781-5CCHF4J6BYSVXQ2W6C8L/profile.jpg People https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1621779552193-B6NF5MWLRUZW4313W62Y/Shafer.jpg People - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1537149628040-S0U496JOHFJQKHKMSXBX/Carr_small.jpg People http://lnsp.mit.edu/aditi-verma daily 0.75 2014-11-16 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1415849103776-R5M0YOI6OE5H7NEJL6KS/image-asset.jpeg Aditi Verma http://lnsp.mit.edu/brendan-hanlon daily 0.75 2014-10-30 http://lnsp.mit.edu/ruaridh-macdonald daily 0.75 2020-01-10 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1452300010121-GVXA47RS84MWQ9SW8KQO/image-asset.jpeg Ruaridh Macdonald http://lnsp.mit.edu/areg-danagoulian daily 0.75 2020-10-08 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1414535113353-HTDF1K1OD932W6OGUWRO/image-asset.png Areg Danagoulian http://lnsp.mit.edu/richard-lanza daily 0.75 2014-10-25 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1414244400005-BCIZPOI2X463PR3E2CYK/image-asset.jpeg Richard Lanza http://lnsp.mit.edu/ellie-immerman daily 0.75 2014-10-06 http://lnsp.mit.edu/a-taylor-baldwin daily 0.75 2014-11-16 http://lnsp.mit.edu/margret-root daily 0.75 2014-11-26 http://lnsp.mit.edu/jill-rahon daily 0.75 2014-12-04 http://lnsp.mit.edu/computational daily 0.75 2015-02-18 http://lnsp.mit.edu/td-macdonald daily 0.75 2016-11-14 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1471561736144-MH987AYYTFTUS9VHWE6M/TD.jpg T.D. MacDonald http://lnsp.mit.edu/phd-alumni daily 0.75 2020-11-13 http://lnsp.mit.edu/geant4 daily 0.75 2015-05-26 http://lnsp.mit.edu/positions daily 0.75 2021-01-18 http://lnsp.mit.edu/form daily 0.75 2015-09-14 http://lnsp.mit.edu/brian-henderson daily 0.75 2016-09-02 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1464112696743-ATYIS2APW876ZZTNCXHB/image-asset.jpeg Brian Henderson http://lnsp.mit.edu/michael-short daily 0.75 2022-01-26 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1479140988124-38WT7F2BOSFG7DZUVVVU/image-asset.jpeg Michael Short http://lnsp.mit.edu/rachel-connick daily 0.75 2016-11-19 http://lnsp.mit.edu/roberts-bobby-nelson daily 0.75 2018-05-13 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1481156756172-VXVQ8M8IGB0SLAPB6YY3/bio_photo.jpg Roberts "Bobby" Nelson http://lnsp.mit.edu/treaty-verification daily 0.75 2019-10-23 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523236582049-TF2BYWPO8DV2FD6FJMHZ/Untitled.png Treaty Verification with Resonant Phenomena https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1524403301374-XAYOFATCGHUYJS4BO6LI/NRF-schema.jpg Treaty Verification with Resonant Phenomena https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523328500556-7KCGK43LNFDKQEI7ZQIV/logo.png Treaty Verification with Resonant Phenomena http://lnsp.mit.edu/nestor-sepulveda daily 0.75 2018-05-13 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1524793005705-C0MOPZ2EBJC2CLEPZWNQ/nestor.jpg Nestor Sepulveda http://lnsp.mit.edu/treaty-verification-with-epizk daily 0.75 2018-04-15 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523323282259-H0VKTNAW0ZIJSQMJ228I/cross_sections_jeff_32.png Treaty Verification with epiZK https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523324417726-JMMUUC8BL32D7V0W960Z/onedoesnotsimply.jpg Treaty Verification with epiZK https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523326614938-NCSMH9SEGEPFLIKDUGDA/p21.png Treaty Verification with epiZK https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523326475258-KKFII06QAJUXCH9CJ46X/Figure4abc.png Treaty Verification with epiZK (a) honest pit, the inspector cannot infer anything about the pit. (b) the weapons grade pit has been replaced with a different isotopic makeup. (c) - a radial comparison http://lnsp.mit.edu/julie-logan daily 0.75 2018-04-22 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1523480347546-LBYOTIJZA2YVL7GPXSRD/Julie_Logan_Photo.jpeg Julie Logan http://lnsp.mit.edu/new-page-1 daily 0.75 2020-09-25 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1601045165950-OW7JIZJCXLT1GL8RC8AX/D+Wright.jpg New Page http://lnsp.mit.edu/jenifer-shafer daily 0.75 2018-06-01 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1527883955934-Q4I0TSNRDI66DYW72E0U/Shafer.jpg Jenifer Shafer http://lnsp.mit.edu/feedback daily 0.75 2022-09-09 http://lnsp.mit.edu/david-wright daily 0.75 2026-01-30 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1601045581533-2UZ9KDET05PTZKG2T0U2/D+Wright.jpg David Wright http://lnsp.mit.edu/webinar-video-archive daily 0.75 2020-11-13 http://lnsp.mit.edu/lisbeth-gronlund daily 0.75 2023-08-29 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1605240353547-6A5QTRCHPYSAEW2UTPQ4/LGronlund.jpg Lisbeth Gronlund http://lnsp.mit.edu/eli-sanchez daily 0.75 2025-02-08 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1612920822455-9PJZQ6CSMYYDUCUATAOS/starry_max.JPG Eli Sanchez http://lnsp.mit.edu/lucas-arthur daily 0.75 2022-08-23 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/c75e20fc-7ac7-45b2-8a17-d0b8d9eedbd4/Lucas.png Lucas Arthur - Make it stand out Whatever it is, the way you tell your story online can make all the difference. http://lnsp.mit.edu/natalie-montoya daily 0.75 2022-08-24 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/f9bd1a9d-5ef6-4dbf-993d-ec77081a3974/Montoya_Natalie_crop.png Natalie Montoya - Make it stand out Whatever it is, the way you tell your story online can make all the difference. http://lnsp.mit.edu/jake-hecla daily 0.75 2023-11-29 https://images.squarespace-cdn.com/content/v1/53aec49fe4b07bdcd67a25ec/1e511f52-9e54-46ed-8565-44865f3b65b5/Jake+Hecla.jpeg Jake Hecla - Make it stand out Whatever it is, the way you tell your story online can make all the difference.