کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1822090 | 1526311 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A cryostat to hold frozen-spin polarized HD targets in CLAS: HDice-II
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A cryostat to hold frozen-spin polarized HD targets in CLAS: HDice-II A cryostat to hold frozen-spin polarized HD targets in CLAS: HDice-II](/preview/png/1822090.png)
چکیده انگلیسی
The design, fabrication, operation, and performance of a 3/4He dilution refrigerator and superconducting magnet system for holding a frozen-spin polarized hydrogen deuteride target in the Jefferson Laboratory CLAS detector during photon beam running is reported. The device operates both vertically (for target loading) and horizontally (for target bombardment). The device proves capable of maintaining a base temperature of 50Â mK and a holding field of 1Â T for extended periods. These characteristics enabled multi-month polarization lifetimes for frozen spin HD targets having proton polarization of up to 50% and deuteron up to 27%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 815, 11 April 2016, Pages 31-41
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 815, 11 April 2016, Pages 31-41
نویسندگان
M.M. Lowry, C.D. Bass, A. D׳Angelo, A. Deur, G. Dezern, C. Hanretty, D. Ho, T. Kageya, D. Kashy, M. Khandaker, V. Laine, T. O׳Connell, O. Pastor, P. Peng, A.M. Sandorfi, D. Sokhan, X. Wei, M. Zarecky,